Investments (Details 1)	Dec. 31, 2021 USD ($)
Debt securities, held-to-maturity	$ 40,236,000
Fed Govt. Bonds/Notes [Member]
Debt securities, held-to-maturity	2,413,000
Corporate Bonds [Member]
Debt securities, held-to-maturity	37,191,000
BBB/BB [Member]
Debt securities, held-to-maturity	13,356,000
BBB/BB [Member] | Corporate Bonds [Member]
Debt securities, held-to-maturity	13,356,000
AAA /AA/A [Member]
Debt securities, held-to-maturity	26,880,000
AAA /AA/A [Member] | Fed Govt. Bonds/Notes [Member]
Debt securities, held-to-maturity	2,413,000
AAA /AA/A [Member] | Corporate Bonds [Member]
Debt securities, held-to-maturity	23,835,000
BBB/BB [Member] | Fed Govt. Bonds/Notes [Member]
Debt securities, held-to-maturity	0
Municipal Bonds [Member]
Debt securities, held-to-maturity	632,000
Municipal Bonds [Member] | BBB/BB [Member]
Debt securities, held-to-maturity	0
Municipal Bonds [Member] | AAA /AA/A [Member]
Debt securities, held-to-maturity	$ 632,000