Annual report pursuant to Section 13 and 15(d)

Geographic and Other Financial Information (Unaudited) (Detail)

v3.19.1
Geographic and Other Financial Information (Unaudited) (Detail) - USD ($)
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Revenues $ 1,979,000 $ 1,923,000 $ 2,648,000 $ 1,544,000 $ 1,597,000 $ 1,405,000 $ 1,325,000 $ 1,211,000 $ 8,094,368 $ 5,537,753 $ 2,127,378
Geographic Concentration Risk 1 [Member]                      
Revenues                 $ 8,094,000 $ 5,538,000 $ 2,127,000
Concentration Risk, Percentage                 100.00% 100.00% 100.00%
Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 8,094,000 $ 5,538,000 $ 2,127,000
Concentration Risk, Percentage                 100.00% 100.00% 100.00%
Asia Pacific [Member] | Geographic Concentration Risk 1 [Member]                      
Revenues                 $ 2,248,000 $ 1,927,000 $ 493,000
Concentration Risk, Percentage                 28.00% 35.00% 23.00%
Europe [Member] | Geographic Concentration Risk 1 [Member]                      
Revenues                 $ 2,183,000 $ 1,892,000 $ 649,000
Concentration Risk, Percentage                 27.00% 34.00% 31.00%
North America [Member] | Geographic Concentration Risk 1 [Member]                      
Revenues                 $ 3,550,000 $ 1,687,000 $ 981,000
Concentration Risk, Percentage                 44.00% 30.00% 46.00%
Other Continent [Member] | Geographic Concentration Risk 1 [Member]                      
Revenues                 $ 113,000 $ 32,000 $ 4,000
Concentration Risk, Percentage                 1.00% 1.00% 0.00%
Other Continent [Member] | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 976,000 $ 1,058,000 $ 350,000
Concentration Risk, Percentage                 12.00% 19.00% 17.00%
UNITED STATES | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 3,475,000 $ 1,618,000 $ 962,000
Concentration Risk, Percentage                 43.00% 29.00% 45.00%
FRANCE | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 907,000 $ 429,000 $ 211,000
Concentration Risk, Percentage                 11.00% 8.00% 10.00%
JAPAN | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 1,261,000 $ 1,340,000 $ 288,000
Concentration Risk, Percentage                 16.00% 24.00% 14.00%
GERMANY | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 492,000 $ 526,000 $ 263,000
Concentration Risk, Percentage                 6.00% 9.00% 12.00%
UNITED KINGDOM | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 139,000 $ 529,000 $ 46,000
Concentration Risk, Percentage                 2.00% 10.00% 2.00%
SINGAPORE | Geographic Concentration Risk 2 [Member]                      
Revenues                 $ 844,000 $ 38,000 $ 7,000
Concentration Risk, Percentage                 10.00% 1.00% 0.00%