Consolidated Statement of Cash Flows $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net loss	$ (1,809)	$ (927)	$ (1,503)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation, Depletion and Amortization	5,632	4,512	4,232
Stock-based compensation expense	6,846	4,775	3,419
Gain on sale of equity method investment	0	0	(1,036)
Other Operating Income (Expense), Net	105	(240)	(383)
Increase (Decrease) in Operating Assets [Abstract]
Accounts and other receivables	(22,772)	(11,248)	(10,219)
Prepaid expenses and other assets	(432)	(2,628)	(179)
Accounts payable, accrued liabilities, and other liabilities	4,110	4,531	3,019
Reserve for veterinary invoices	5,059	3,440	3,149
Deferred revenue	19,418	10,465	9,167
Net cash provided by operating activities	16,157	12,680	9,666
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of investment securities	(65,506)	(52,862)	(31,920)
Maturities of investment securities	49,762	35,413	23,372
Payments for (Proceeds from) Investments	(4,000)	(3,000)	0
Payments to Acquire Intangible Assets	0	(2,959)	0
Proceeds from Sale of Equity Method Investments	0	0	1,402
Purchases of property and equipment	(5,373)	(56,936)	(3,131)
Payments for (Proceeds from) Other Investing Activities	(2,891)	(1,107)	(2,779)
Net cash used in investing activities	(28,008)	(81,451)	(13,056)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from Issuance or Sale of Equity	0	65,671	0
Proceeds from exercise of stock options	2,982	3,601	2,545
Payments Related to Tax Withholding for Share-based Compensation	(1,667)	(1,839)	(1,170)
Proceeds from debt financing, net of financing fees	13,167	13,431	4,400
Repayments of Long-term Debt	0	(10,000)	0
Proceeds from (Payments for) Other Financing Activities	(438)	365	(694)
Net cash provided by financing activities	14,044	71,229	5,081
Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash, net	423	(812)	378
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	2,616	1,646	2,069
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	30,568	27,952	26,306
Supplemental Cash Flow Information [Abstract]
Income taxes paid	158	216	177
Interest Paid, Excluding Capitalized Interest, Operating Activities	1,188	1,019	333
Redemption of Warrants Non-Cash; Common Stock	4,500	3,000	0
Acquisition of Corporate Real Estate Non-Cash, Common Stock	0	9,640	0
Purchases of property and equipment included in accounts payable and accrued liabilities	485	106	390
Capital Lease Obligations Incurred	$ 0	$ 0	$ 689