Borrowing Facilities (Narrative) (Details) $ in Thousands		9 Months Ended
	Jun. 30, 2021	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Line of Credit Facility [Line Items]
Maximum amount of Credit Facility		$ 55,000	$ 55,000
Tangible net worth		$ 8,600
Leverage ratio		0.15
Interest Coverage ratio		21.51
Credit Facility [Member]
Line of Credit Facility [Line Items]
Maximum amount of Credit Facility		$ 55,000
Line of Credit Facility, expiration date	Jun. 30, 2021	Jun. 30, 2023
Amount borrowed by the Company under the facility		$ 0	$ 0
Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.25%
Minimum [Member] | Covenant Requirement [Member]
Line of Credit Facility [Line Items]
Tangible net worth requirement under the Credit Facility		$ 10,000
Interest Coverage ratio		2
Maximum [Member] | Covenant Requirement [Member]
Line of Credit Facility [Line Items]
Leverage ratio		1.25