Consolidated Condensed Statements Of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net loss	$ (3,497,648)	$ (5,253,193)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	302,385	533,983
Non-cash equity based compensation	269,891	299,349
Recovery of impaired assets		(585,800)
Gain on sale of long-lived assets	(606,006)
Impairment of inventories		9,906
Change in operating assets and liabilities:
Accounts receivable	529,208	178,941
Costs and estimated earnings on uncompleted contracts	29,917	(16,329)
Inventories	(939,197)	(157,430)
Prepaid expenses and other current assets	(43,198)	12,834
Accounts payable and other current liabilities	845,931	244,231
Billings in excess of costs and estimated earnings on engineering services contracts	25,378	(60,266)
Other long-term liabilities	(15,000)	125,000
Net cash used in operating activities	(3,098,339)	(4,668,774)
Cash flows from investing activities:
Acquisition of property and equipment	(46,158)	(102,545)
Cash paid for patent and trademark fees	(13,411)	(15,198)
Cash proceeds from the sale of long-lived assets	1,392,948
Net cash provided by / (used in) investing activities	1,333,379	(117,743)
Cash flows from financing activities:
Cash received for shares exercised under employee stock purchase plan	36,327	35,474
Registered direct offering costs		(65,000)
Draw on line of credit	3,100,000
Payment of employee tax withholdings in exchange for return of common stock	(12,381)	(10,678)
Issuance of common stock upon definitive stock purchase argeement	5,099,898
Issuance of common stock upon exercise of employee and directors options	18,763
Net cash provided by / (used in) financing activities	8,242,607	(40,204)
Increase / (decrease) in cash, cash equivalents, and restricted cash	6,477,647	(4,826,721)
Cash, cash equivalents, and restricted cash at beginning of period	2,100,089	8,688,668
Cash, cash equivalents, and restricted cash at end of period	$ 8,577,736	$ 3,861,947