Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Summary of Significant Accounting Policies

Schedule of Cash and Cash equivalents

	December 31, 2020			December 31, 2019
Cash and cash equivalents:
Cash deposits	$	16,628		$	38,942
Money market funds		4,822			3,460
Commercial paper		1,000			2,646
Total cash and cash equivalents	$	22,450		$	45,048
Short-term investments:
Commercial paper (held-to-maturity)	$	5,178		$	6,778
Bonds (held-to-maturity)		14,101			16,988
Allowance for credit losses		(21	)		-
Total short-term investments	$	19,258		$	23,766
Long-term investments:
Mutual funds (available for sale)	$	563		$	1,105
Bonds (held-to-maturity)		41,619			27,845
Allowance for credit losses		(52	)		-
Equity securities (available for sale)		4,077			2,822
Total long-term investments	$	46,207		$	31,772
Total cash, cash equivalents and short and long-term investments	$	87,915		$	100,586

Schedule of Inventories

	December 31,
	2020		2019
Raw materials	$	20,308	$	18,157
Work in process		11,339		8,525
Finished goods		18,651		15,411
Total inventories	$	50,298	$	42,093

Schedule of Property, Plant and Equipment

	December 31,				Useful
	2020		2019		Lives
Land	$	5,511	$	5,511		—
Buildings		35,114		34,582	30-40 yrs.
Machinery and equipment		178,287		160,897	3-15 yrs.
Total property, plant and equipment	$	218,912	$	200,990

Schedule of Current Accrued Liabilities

	December 31,
	2020		2019
Accrued payroll and related expenses	$	5,656	$	4,233
Accrued vacation		276		311
Other accrued liabilities		633		604
Total accrued liabilities	$	6,565	$	5,148

Schedule of geographic area

	Year ended December 31,
	2020		2019		2018
United States	$	85,682	$	98,496	$	95,757
Germany		9,712		7,996		8,898
Other countries less than 5% of revenues		52,197		48,574		47,793
Total	$	147,591	$	155,066	$	152,448

Schedule of product line Information

`	Year ended December 31,
	2020		2019		2018
Fluid Delivery	$	75,228	$	72,117	$	70,606
Cardiovascular		48,524		54,799		50,904
Ophthalmology		4,700		7,124		10,473
Other		19,139		21,026		20,465
Total	$	147,591	$	155,066	$	152,448