Commitments and Contingencies (Details-3)	12 Months Ended
	Dec. 31, 2020 USD ($)
Other Commitments [Line Items]
Other commitments, due in 2021	$ 333,000
Other commitments, due in 2022	333,000
Other commitments, due in 2023	333,000
Other commitments, due in 2024	333,000
Other commitments, due in 2025	333,000
Other commitment, due thereafter	2,999,000
Investments in Non Public Entities, Capital Infusions [Member]
Other Commitments [Line Items]
Other commitment, initial agreed upon commitment total	$ 13,600,000
Venture Debt Fund [Member]
Other Commitments [Line Items]
Other commitment, contract term, expiring in 2022	3 years
Other commitment, initial agreed upon commitment total	$ 1,500,000
Other commitments, total as of balance sheet date	$ 400,000