CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (4,236)	$ (1,496)
Adjustments to reconcile net loss to net cash used in operating activities:
Loss on impairment	5,464	0
Depreciation	91	103
Amortization of definite-lived intangible assets	509	150
Amortization of capitalized software development costs	129	118
Change in fair value of contingent consideration	(1,200)	0
Stock-based compensation expense	597	627
Gain (loss) on derivative instruments, net	(93)	156
Deferred income taxes	(2,128)	(90)
Changes in assets and liabilities:
Contract receivables, net	5,388	(4,683)
Prepaid expenses and other assets	439	(12)
Accounts payable, accrued compensation, and accrued expenses	(2,446)	647
Billings in excess of revenue earned	(3,185)	(1,127)
Accrued warranty	62	(75)
Other liabilities	23	154
Cash used in operating activities	(586)	(5,528)
Cash flows from investing activities:
Capital expenditures	(11)	(318)
Capitalized software development costs	(110)	(105)
Acquisition of DP Engineering, net of cash acquired	(13,521)	0
Cash used in investing activities	(13,642)	(423)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	14,263	0
Repayment of long-term debt	(671)	0
Proceeds from issuance of common stock on the exercise of stock options	42	57
Contingent consideration payments to former owners of Hyperspring, LLC	0	(1,701)
Shares withheld to pay taxes	(150)	(76)
Cash provided by (used in) financing activities	13,484	(1,720)
Effect of exchange rate changes on cash	(33)	10
Net decrease in cash, cash equivalents, and restricted cash	(777)	(7,661)
Cash, cash equivalents, and restricted cash, beginning balance	12,123	20,071
Cash, cash equivalents, and restricted cash, ending balance	$ 11,346	$ 12,410