CONSOLIDATED BALANCE SHEETS - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 25,005,917	$ 42,460,267
Accounts receivable, net	16,268,645	13,037,068
Receivable from sale of HSOR business	2,501,386	2,500,000
Contract assets	2,758,946	2,422,495
Inventory, net	10,294,431	6,873,742
Prepaid expenses and other current assets	1,286,968	935,185
Total current assets	58,116,293	68,228,757
Property and equipment, net	3,465,612	3,627,886
Intangible assets, net	10,194,477	3,302,270
Goodwill	10,541,676	101,008
Long term contract assets	449,260	336,820
Other assets	2,341,179	1,995
Deferred tax asset	1,415,563	0
Total assets	86,524,060	75,598,736
Current liabilities:
Current portion of long-term debt obligations	0	619,315
Current portion of capital lease obligations		40,586
Accounts payable	2,786,825	2,395,984
Accrued liabilities	10,369,545	6,597,458
Contract liabilities	3,887,685	2,486,111
Total current liabilities	17,044,055	12,139,454
Long-term portion of deferred rent		1,035,974
Other long-term liabilities	2,011,487
Long-term capital lease obligations		68,978
Total liabilities	19,055,542	13,244,406
Commitments and contingencies (Note 14)
Stockholders’ equity:
Preferred stock, par value $0.001, 1,321,514 shares authorized, 0 and 1,321,514 shares issued and outstanding at December 31, 2019 and 2018, respectively	0	1,322
Common stock, par value $0.001, 100,000,000 shares authorized, 31,788,896 and 29,209,506 shares issued, 30,149,105 and 27,956,401 shares outstanding at December 31, 2019 and 2018, respectively	31,849	30,120
Treasury stock at cost, 1,639,791 and 1,253,105 shares at December 31, 2019 and 2018, respectively	(4,337,107)	(2,116,640)
Additional paid-in capital	88,021,903	85,744,750
Accumulated deficit	(16,248,127)	(21,305,222)
Total stockholders’ equity	67,468,518	62,354,330
Total liabilities and stockholders’ equity	$ 86,524,060	$ 75,598,736