Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income/(loss)	$ 1,024,034	$ (337,764)
Adjustments to reconcile net income/(loss) to net cash (used in) operating activities
Stock-based compensation	217,455	163,105
Depreciation and amortization	207,105	215,460
Deferred tax expense/(benefit)	291,174	(132,620)
Provision for doubtful accounts	892	(996)
(Increases)/decreases in operating assets:
Accounts receivable, net	(7,438,955)	(297,706)
Cost and estimated earnings in excess of billings on contracts in progress	852,852	309,020
Inventories, net	543,141	(199,193)
Other current assets	(240,519)	85,213
Increases (decreases) in operating liabilities:
Accounts payable and accrued expenses	295,489	(68,678)
Billings in excess of costs and estimated earnings on contracts in progress	(609,518)	29,961
Deferred revenue	1,928,808	(297,485)
Total adjustments	(3,952,076)	(193,919)
Net cash (used in) operating activities:	(2,928,042)	(531,683)
Cash flows from investing activities:
Capital expenditures	(284,735)	(31,339)
Deposits	(10,625)
Net cash (used in) investing activities:	(295,360)	(31,339)
Cash flows from financing activities:
Payments of long-term debt	(75,000)	(180,000)
Net cash (used in) financing activities:	(75,000)	(180,000)
Net (decrease) in cash and cash equivalents	(3,298,402)	(743,022)
Cash and cash equivalents at beginning of period	21,677,186	13,073,331
Cash and cash equivalents at end of period	18,378,784	12,330,309
Supplemental disclosure of cash flow information:
Income taxes paid		100,000
Interest paid	$ 17,637	$ 19,993